How are the Power of 10 rankings worked out?

In an average week during the track and field season, thousands of performances are added. We endeavour to upload results within a day or two after submission (often sooner). In order to speed up this process, meeting organisers should submit full and accurate results as soon as possible in spreadsheet form, ideally Excel. Results (in vertical rather than horizontal format) should include full athlete names, gender, age group and club, and also confirm appropriate specifications used (hurdles, throwing weights etc).